import java.util.ArrayList;
import java.util.Scanner;
import java.io.File;

public class Dictionary {
	private ArrayList<String> words;

	public Dictionary() {
		this.words = new ArrayList<String>();
	}

	public Dictionary(String fileName) throws java.io.FileNotFoundException {
	    this.words = new ArrayList<String>();
	    
	    Scanner infile = new Scanner(new File(fileName));
	    while (infile.hasNext()) {
	        String nextWord = infile.next();
	        this.addWord(nextWord);
	    }
	}
	   
	public boolean addWord(String newWord) {
		if (!this.findWord(newWord)) {
		    this.words.add(newWord);
		    return true;
		}
		return false;
	}
	 
	public boolean findWord(String desiredWord) {
	    return this.words.contains(desiredWord);
	}
	
	public int numWords() {
	    return this.words.size();
	}
	
	public String toString() {
	    return this.words.toString();
	}
}